CN111965828A - Wearable device and image projection method - Google Patents
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- 238000000034 method Methods 0.000 title claims abstract description 25
- 230000000737 periodic effect Effects 0.000 claims abstract description 6
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- 239000012788 optical film Substances 0.000 claims description 8
- 230000002708 enhancing effect Effects 0.000 claims description 5
- 238000002834 transmittance Methods 0.000 claims description 5
- 230000008569 process Effects 0.000 abstract description 10
- 230000020169 heat generation Effects 0.000 abstract description 5
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- 230000003190 augmentative effect Effects 0.000 description 5
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- 230000001965 increasing effect Effects 0.000 description 3
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- G—PHYSICS
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- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
- G02B27/01—Head-up displays
- G02B27/017—Head mounted
- G02B27/0172—Head mounted characterised by optical features
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1343—Electrodes
- G02F1/134309—Electrodes characterised by their geometrical arrangement
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/15—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on an electrochromic effect
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
- G02B27/01—Head-up displays
- G02B27/017—Head mounted
- G02B2027/0178—Eyeglass type
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Abstract
The application provides a wearable device and an image projection method. This wearable equipment includes support, display module and treater, and the display module includes: the screen module is provided with a display area; the grating module comprises a plurality of light-transmitting grid bars which are used for shielding light rays when the grating module is closed and transmitting the light rays when the grating module is opened, and the plurality of light-transmitting grid bars are divided into a plurality of groups which are arranged in a periodic staggered manner; the processor is used for controlling the multiple groups of light-transmitting grids to be opened in sequence and controlling the corresponding partial position area on the display area to display when each light-transmitting grid is opened. When the viewer watches, only part of the display area can be seen when each group of transparent grid bars are opened, and the whole display area can be seen when the plurality of groups of transparent grid bars are opened in sequence due to the persistence of vision of human eyes; the display area only needs to display partial pictures of the complete image every time, the use of bandwidth is reduced, the corresponding processor only needs to process corresponding partial data every time, the processing data volume is small, and further the power consumption and the heat generation can be reduced.
Description
Technical Field
The application belongs to the technical field of augmented reality, and particularly relates to a wearable device and an image projection method.
Background
AR (Chinese: Augmented Reality; English: Augmented Reality). Wearable equipment such as current AR glasses that have augmented reality function generally sends wearable equipment's display module on with high resolution image data processing back such as video data and high definition image through the treater, display information gets into people's eye to realize augmented reality. In order to make the user watch more clearly and improve the user experience, the resolution of the image is often required to be improved, so that a larger bandwidth is required to transmit data, the data processed by the corresponding processor at one time is also greatly increased, and the heat and power consumption of the processor are greatly increased. For example, 1920 × 1080 image data requires at least four times the bandwidth for transmitting 960 × 540 image data to the display module, and the amount of data processed by the processor increases by four times, which may significantly increase the heat generation and power consumption of the processor.
Disclosure of Invention
An object of the embodiment of the present application is to provide a wearable device, so as to solve the technical problem that when the wearable device in the related art sees high-resolution image data, a large bandwidth is required, and a processor processes a large amount of data, which results in a large increase in heat generation and power consumption.
In order to achieve the above purpose, the embodiment of the present application adopts the following technical solutions: there is provided a wearable device comprising a stand, a display module and a processor, the display module being mounted on the stand, the display module comprising:
the screen module is provided with a display area; and the number of the first and second groups,
the grating module comprises a plurality of light-transmitting grating bars for shielding light rays when the grating module is closed and transmitting light rays when the grating module is opened, the plurality of light-transmitting grating bars are divided into a plurality of groups, each group of light-transmitting grating bars is used for transmitting light rays emitted by a part of position areas on the display area when the grating module is opened, and the plurality of groups of light-transmitting grating bars are arranged in a periodic staggered manner;
the processor is used for controlling the multiple groups of the light-transmitting grid bars to be sequentially opened and controlling the corresponding partial position areas on the display area to display when the light-transmitting grid bars of each group are opened.
In an optional embodiment, the grating module comprises a light-transmitting substrate, a dam arranged on the light-transmitting substrate, liquid crystal filled in the dam and a light-transmitting cover plate covering the dam; the transparent substrate is provided with a transparent electrode, and the transparent cover plate is provided with a transparent electrode which is used for being matched with the transparent electrode to control the liquid crystal to rotate so as to form a plurality of groups of transparent grid bars.
In an optional embodiment, the transparent electrode covers the light-transmitting cover plate, and the light-transmitting electrode is arranged in an elongated shape; or the transparent electrode covers the transparent substrate, and the transparent electrode is arranged in a long strip shape.
In an optional embodiment, the transparent electrode and the light-transmitting electrode are both in an elongated shape, and the transparent electrode is perpendicular to the light-transmitting electrode.
In an optional embodiment, the transparent electrode and the light-transmitting electrode are both in a long strip shape, the transparent electrode is parallel to the light-transmitting electrode, and the positions of the transparent electrode and the positions of the light-transmitting electrode are in one-to-one correspondence.
In an alternative embodiment, the grating module comprises a plurality of electrochromic strips, and each electrochromic strip forms one of the light-transmitting grating strips.
In an optional embodiment, the grating module further includes a light-transmitting layer, and each electrochromic strip is adhered to the light-transmitting layer.
In an alternative embodiment, the light-transmitting grid bars are two groups.
In an alternative embodiment, each of the light-transmitting grids corresponds to M columns of pixels on the display area, where M is a positive integer.
In an optional embodiment, the display region has K columns of pixels, the light-transmitting grid bars are N groups, each group of the light-transmitting grid bars includes P light-transmitting grid bars, and each light-transmitting grid bar corresponds to M columns of pixels on the display region; k ═ P × M × N, where: K. p, M, N are positive integers, and N is more than or equal to 2.
In an alternative embodiment, the number of the display modules is two, and the two display modules correspond to the left eye and the right eye respectively.
In an optional embodiment, the screen module is a display screen; the grating module is arranged on the front side of the display screen at intervals, or the grating module is attached to the display screen.
In an optional embodiment, the screen module comprises a display light source, a curved reflector and a spectroscope; the spectroscope reflects the light rays emitted by the display light source to the curved surface reflector and allows the light rays reflected by the curved surface reflector to pass out; the grating module is arranged on a light emitting path of the display light source.
In an optional embodiment, the grating module is disposed between the curved reflector and the beam splitter, or the grating module is disposed on a side of the beam splitter facing away from the curved reflector.
In an optional embodiment, the screen module further includes a lens assembly disposed between the display light source and the beam splitter.
In an alternative embodiment, an optical film for enhancing light transmittance is provided on the spectroscope.
In an alternative embodiment, the optical film includes a polarizing film and/or an antireflection film.
In an optional embodiment, the curved reflector is provided with a functional film for enhancing the light reflection rate.
Another objective of the embodiments of the present application is to provide an image projection method, which includes the following steps:
a plurality of light-transmitting grid bars are arranged for shielding light when the grid bars are closed and transmitting light when the grid bars are opened;
the light-transmitting grid bars correspond to a display area, and the light-transmitting grid bars are divided into a plurality of groups which are arranged in a periodic staggered mode;
processing and dividing an image into a plurality of sub-images according to the position areas of the display areas corresponding to the plurality of groups of the light-transmitting grid bars;
and controlling the multiple groups of the light-transmitting grid bars to be sequentially opened, and controlling corresponding partial position areas on the display area to display corresponding sub-images when each group of the light-transmitting grid bars are opened.
The wearable equipment that this application embodiment provided has: compared with the prior art, the wearable equipment has the advantages that the plurality of groups of light-transmitting grid bars are arranged, when each group of light-transmitting grid bars are opened, light rays in partial position areas of the display area can be transmitted out, and when each group of light-transmitting grid bars are closed, the light rays in the partial position areas of the display area can be shielded; when the viewer watches, only part of the display area can be seen when each group of transparent grid bars are opened, and the whole display area can be seen when the plurality of groups of transparent grid bars are opened in sequence due to the persistence of vision of human eyes; when each group of light-transmitting grid bars are opened, only the display pictures of the partial position areas corresponding to the group of light-transmitting grid bars in the display area can be displayed, so that when the whole image displayed in the whole display area can still be seen when the human eyes watch the image, only partial pictures of the whole image need to be displayed in the display area at each time, the use of bandwidth is reduced, the corresponding processor only needs to process corresponding partial data at each time, the data processing amount is small, and the power consumption and the heating can be reduced.
The image projection method provided by the embodiment of the application comprises the steps that multiple groups of light-transmitting grids correspond to a display area, the image is divided into multiple sub-images, each sub-image corresponds to one group of light-transmitting grids and a part of position areas on the display area, the multiple groups of light-transmitting grids are sequentially started, the whole display area can be seen due to the persistence of vision of human eyes, and then the complete image displayed by the display area can be seen, the display area only needs to display one sub-image of the complete image at each time, the use of bandwidth is reduced, a corresponding processor serving as control only needs to process corresponding partial data at each time, the data processing amount is small, and power consumption and heating can be reduced.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the embodiments or exemplary technical descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a wearable device according to an embodiment of the present application;
fig. 2 is a schematic structural diagram of a display module outputting a 1 st picture according to a first embodiment of the present disclosure;
FIG. 3 is a schematic structural diagram of the display module of FIG. 2 outputting an ith picture;
fig. 4 is a schematic structural diagram of the display module of fig. 2 outputting an nth screen.
Fig. 5 is a schematic structural diagram of the display module according to the second embodiment of the present application when outputting the 1 st picture.
Fig. 6 is a schematic structural diagram of a display module according to a third embodiment of the present application;
fig. 7 is a schematic structural diagram of a grating module according to a fourth embodiment of the present disclosure;
fig. 8 is a schematic structural diagram of a wearable device provided in this application embodiment five.
Fig. 9 is a schematic structural diagram of a wearable device outputting a 1 st screen according to a sixth embodiment of the present application.
Fig. 10 is a schematic structural diagram of a display module of a wearable device according to a sixth embodiment of the present application.
Fig. 11 is a schematic structural diagram of a display module of a wearable device according to a seventh embodiment of the present application.
Fig. 12 is a schematic structural diagram of a display module of a wearable device according to an eighth embodiment of the present application.
Fig. 13 is a schematic structural diagram of a display module of a wearable device according to a ninth embodiment of the present application.
Fig. 14 is a flowchart of an image projection method according to an embodiment of the present application.
Wherein, in the drawings, the reference numerals are mainly as follows:
100-a wearable device;
11-a scaffold; 12-a processor;
20-a display module; 21-a screen module; 210-a display area; 2101-area 1; 2102-ith area; 2103-region N; 211-a display screen; 212-display light source; 213-a spectroscope; 2131-an optical film; 214-curved mirror; 2141-a functional membrane; 215-a lens assembly; 22-a grating module; 221-light-transmitting grid bars; 2211-group 1 of light-transmitting grid bars; 2212-ith group of light-transmitting grid bars; 2213-Nth group of light-transmitting grid bars; 222-a light-transmissive substrate; 2221-a light-transmissive electrode; 223-box dam; 224-a light transmissive cover plate; 2241-a transparent electrode; 225-electrochromic bar; 226-a light transmitting layer;
90-human eye; 91-left eye; 92-right eye.
Detailed Description
In order to make the technical problems, technical solutions and advantageous effects to be solved by the present application clearer, the present application is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the present application.
In the description of the present application, "a plurality" means two or more unless specifically limited otherwise. The meaning of "a number" is one or more unless specifically limited otherwise.
Reference throughout this specification to "one embodiment," "some embodiments," or "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment is included in one or more embodiments of the present application. Thus, appearances of the phrases "in one embodiment," "in some embodiments," "in other embodiments," or the like, in various places throughout this specification are not necessarily all referring to the same embodiment, but rather "one or more but not all embodiments" unless specifically stated otherwise. Furthermore, the particular features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.
Referring to fig. 1 and fig. 2, a wearable device 100 provided by the present application will now be described. The wearable device 100 comprises a support 11, a display module 20 and a processor 12, wherein the display module 20 is mounted on the support 11, the display module 20 is used for projecting display light to a human eye 90 so as to be watched by the human eye 90, and the processor 12 is used for processing the video quantity and controlling the display module 20 to display.
Referring to fig. 2 and 3, the display module 20 includes a screen module 21 and a grating module 22; the screen module 21 has a display area 210 for displaying images such as video and pictures through the display area 210. The grating module 22 includes a plurality of sets of light-transmitting bars 221, each set including a plurality of light-transmitting bars 221. When the light-transmitting grid bars 221 are closed, light can be blocked, and when the light-transmitting grid bars 221 are opened, light can be emitted out of the light-transmitting grid bars 221, that is, the light-transmitting grid bars 221 can be switched between a light-transmitting state and a light-blocking state, when the light-transmitting grid bars 221 are opened, the light-transmitting state corresponds to the light-transmitting state, and when the light-transmitting grid bars 221 are closed, the light-blocking state corresponds to the light-blocking state. When the grating module 22 corresponds to the display area 210 and each of the transparent bars 221 is opened, only the light generated by a part of the position area or a part of the pixel rows on the display area 210 is transmitted through the transparent bars 221; when each corresponding light-transmitting grid bar 221 is closed, only a corresponding partial position area or a partial pixel column on the display area 210 is shielded. Each column of pixels displayed by the display area 210 is referred to herein as a pixel column. The plurality of sets of light-transmitting bars 221 may cooperate to let the light rays displayed in the entire display region 210 of the screen module 21 pass through, for example, when each light-transmitting bar 221 is opened, the human eye 90 may see the entire display region 210 of the screen module 21 through the grating module 22; when each of the transparent bars 221 is turned off, the grating module 22 blocks the entire display area 210 of the screen module 21. If only the corresponding light-transmitting grid bars 221 in each group are turned on, only a part of the position area of the display area 210 can be seen by the human eyes 90, that is, only a part of the picture can be seen at this time; that is, each set of the light-transmitting grating strips 221 of the grating module 22 actually corresponds to a part of the position area on the display area 210. In addition, the plurality of sets of transparent bars 221 are arranged in a periodically staggered manner, so that when one set of transparent bars 221 is opened and the other set of transparent bars 221 is closed, the periodically spaced display pictures on the display region 210 can pass through the grating module 22. Therefore, the processor 12 controls the plurality of sets of light-transmitting grills 221 to be sequentially turned on, so that the whole display area 210 of the screen module 21 can be seen due to the persistence of vision of the human eyes 90. When the processor 12 is started at each group of the light-transmitting grid bars 221, the display area 210 of the screen module 21 is controlled to display the part corresponding to the group of the light-transmitting grid bars 221, so that the screen module 21 only needs to display part of pictures at each time, and the corresponding processor 12 only needs to process part of picture data, thereby not only reducing the use of bandwidth, but also reducing the data volume processed by the processor 12 at one time, and reducing the power consumption and the heat generation of the processor 12.
Compared with the prior art, according to the wearable device 100 provided by the application, by arranging the plurality of groups of light-transmitting grid bars 221, when each group of light-transmitting grid bars 221 is opened, display light rays in a part of position areas of the display area 210 can be transmitted, and when each group of light-transmitting grid bars 221 is closed, the light rays in the part of position areas of the display area 210 can be shielded; when watching, each group of the transparent grid bars 221 is opened to only see a part of the display area 210, and the plurality of groups of the transparent grid bars 221 are opened in sequence to see the whole display area 210 due to the visual effect of the human eyes 90; when each group of light-transmitting grid bars 221 is opened, the display can only display the picture in the partial position area of the area 210 corresponding to the group of light-transmitting grid bars 221, so that when the human eyes 90 watch the picture, the whole image displayed in the whole display area 210 can still be seen, the display area 210 only needs to display partial picture of the whole image at each time, the use of bandwidth is reduced, the corresponding processor 12 only needs to process corresponding partial data at each time, the data processing amount is small, and further, the power consumption and the heating can be reduced.
Referring to fig. 2 to 4, an example is illustrated below, as shown in fig. 2, the grating module 22 includes N sets of transparent grating bars 221, the grating module 22 correspondingly divides the display area 210 into N areas, the N areas are periodically arranged in a staggered manner, and each area is an interval stripe when displaying, that is, each area of the N areas of the display area 210 is an interval stripe picture projected to one visual angle of the human eye 90 when working, and the interval stripe picture extends the entire visual angle range of the human eye 90; since the light-per-transmission grid 221 is actually very small, it is only transparent to light of one or a few pixel columns, and thus, viewed by the human eye 90, is a low-resolution picture. For example, the 1 st group of transparent bars 2211 of the grating module 22 corresponds to the 1 st area 2101 on the display area 210, the i th group of transparent bars 2212 of the grating module 22 corresponds to the i th area 2102 on the display area 210, the N th group of transparent bars 2213 of the grating module 22 corresponds to the N th area 2103 on the display area 210, N is greater than or equal to 2, N is a positive integer, i is greater than or equal to 1 and less than or equal to N, and i is a positive integer. When the 1 st group of light-transmitting grid bars 2211 of the grating module 22 is opened and the other light-transmitting grid bars 221 are closed, the 1 st picture displayed in the 1 st area 2101 on the display area 210 can be viewed by human eyes 90 through the 1 st group of light-transmitting grid bars 2211, and correspondingly, the processor 12 only needs to process the data of the 1 st picture at this time. When the ith group of light-transmitting grid bars 2212 of the grating module 22 is opened and the other light-transmitting grid bars 221 are closed, the ith picture displayed in the ith area 2102 on the display area 210 can be viewed by human eyes 90 through the ith group of light-transmitting grid bars 2212, and correspondingly, the processor 12 only needs to process the data of the ith picture at this time. When the nth group of light-transmitting grid bars 2213 of the grating module 22 is opened and the other light-transmitting grid bars 221 are closed, the nth picture displayed in the nth region 2103 on the display region 210 can be viewed by human eyes 90 through the nth group of light-transmitting grid bars 2213, and correspondingly, the processor 12 only needs to process the data of the nth picture at this time. The light-transmitting grid bars 2211 to 2213 of the 1 st group to the Nth group of the grating module 22 are sequentially opened, the 1 st to the Nth pictures are sequentially projected to the human eyes 90, the display areas 210 corresponding to the 1 st to the Nth pictures are different, and the positions of the projected human eyes 90 are different, so that the 1 st to the Nth pictures form complete images in the human eyes 90, the human eyes 90 see the images with higher resolution, the pictures entering the human eyes 90 each time are only 1/N of the complete images, the data volume needing to be processed by the processor 12 each time is only 1/N of the data volume corresponding to the complete images, and the bandwidth needing to be used is only 1/N of the bandwidth needed by transmitting the complete images at one time, so that the data volume processed by the processor 12 each time and the bandwidth occupied by transmitting data to the display module 20 each time are reduced, and the power consumption and heat generation of the processor 12 are further reduced, in addition, the amount of data processed by the processor 12 is reduced, the occupied bandwidth is reduced, and the corresponding circuit cost can be reduced, so that the cost of the wearable device 100 is reduced.
In one embodiment, each of the light-transmissive bars 221 corresponds to M columns of pixels on the display area 210, where M is a positive integer, for example, when a human eye 90 visually sees one of the light-transmissive bars 221, light generated by one column of pixels can be projected onto the human eye 90, so that a fine-grained picture can be seen. In some embodiments, when the human eye 90 visually sees that one transparent grating 221 can project the light generated by two rows of pixels, three rows of pixels, and the like, to the human eye 90, so as to simplify the structure of the grating module 22 and reduce the cost of the grating module 22. Of course, in some embodiments, each of the light-transmitting bars 221 corresponds to 1/R of M columns of pixels on the display area 210, and R is a positive integer greater than or equal to 2, that is, each column of pixels on the display area 210 corresponds to R light-transmitting bars 221, which can further reduce the amplitude of the picture projected to the human eye 90 each time.
In one embodiment, the display region 210 has K columns of pixels, the light-transmissive bars 221 are N groups, each group of light-transmissive bars 221 includes P light-transmissive bars 221, and each light-transmissive bar 221 corresponds to M columns of pixels on the display region 210; k ═ P × M × N, where: K. p, M, N are positive integers, N is not less than 2, and the transparent bars 221 can be conveniently grouped and the display regions 210 can be conveniently separated according to the formula of K ═ P × M × N, so as to facilitate control.
In one embodiment, referring to fig. 5, the grating module 22 includes two sets of transparent bars 221, which are divided into a 1 st set of transparent bars 2211 and a 2 nd set of transparent bars 2212, that is, N is 2, i is 2, so that during control, only the 1 st set of transparent bars 2211 and the 2 nd set of transparent bars 2212 need to be controlled to be turned on alternately each time, the corresponding areas on the display area 210 are displayed alternately, and both the structure and the control are greatly simplified.
In one embodiment, referring to fig. 1, only one display module 20 may be mounted on the bracket 11, for example, the display module 20 is disposed at a position corresponding to the left eye. In other embodiments, the display module 20 may be made to correspond to the right eye position only.
In an embodiment, please refer to fig. 8, two display modules 20 may also be installed on the bracket 11, and the two display modules 20 respectively correspond to the left eye 91 and the right eye 92, so as to better perform reality enhancement and improve the effect of watching video by the user.
In one embodiment, referring to fig. 8 and 9, when two display modules 20 corresponding to the left and right eyes are mounted on the bracket 11, a 3D image can be cooperatively displayed. For example, when the two display modules 20 respectively display two viewing angle pictures of a 3D film source, the left eye 91 and the right eye 92 of a person respectively see the pictures of two viewing angles of one picture, and form a 3D image in the brain of the person.
In one embodiment, referring to fig. 6, the screen module 21 is a display screen 211, so that an image displayed by the display screen 211 can be directly projected to the human eye 90, and the structure can reduce the volume of the wearable device 100.
In one embodiment, when the screen module 21 is the display screen 211, the grating module 22 is disposed at the front side of the display screen 211 at intervals, and the light displayed by the display screen 211 reaches the human eye 90 through the grating module 22; the grating modules 22 are arranged on the front side of the display screen 211 at intervals, so that the visual angle of the display screen 211 seen by the human eyes 90 can be better adjusted. In other embodiments, the grating module 22 is attached to the display screen 211, and the grating module 22 is supported by the display screen 211.
In one embodiment, referring to fig. 6, the grating module 22 includes a transparent substrate 222, a dam 223 disposed on the transparent substrate 222, a liquid crystal (not shown) filled in the dam 223, and a transparent cover plate 224 covering the dam 223; the transparent substrate 222 is provided with a transparent electrode 2221, and the transparent cover plate 224 is provided with a transparent electrode 2241, so that an electric field is generated by the transparent electrode 2241 on the transparent cover plate 224 and the transparent electrode 2221 on the transparent substrate 222, and the liquid crystal in the dam 223 is driven to rotate, so as to control the liquid crystal at the corresponding position to transmit light or block light, thereby forming a plurality of sets of transparent grid bars 221. The structure can make each light-transmitting grid 221 smaller, realize higher resolution and improve image quality.
In one embodiment, the transparent electrode 2241 covers the transparent cover plate 224, and the transparent electrode 2221 is disposed in a strip shape, which can simplify the structure, reduce the manufacturing cost, and facilitate the control. Of course, in some embodiments, the transparent electrode 2221 may cover the transparent substrate 222, and the transparent electrode 2241 is disposed in a strip shape, so that the same effect can be achieved.
In one embodiment, the transparent electrode 2241 and the transparent electrode 2221 are in the shape of a long strip, and the transparent electrode 2241 is perpendicular to the transparent electrode 2221, so that the structure can be formed like a liquid crystal control structure in a liquid crystal display, and the technology is relatively mature.
In one embodiment, the transparent electrodes 2241 and the transparent electrodes 2221 are strip-shaped, the transparent electrodes 2241 are parallel to the transparent electrodes 2221, and the positions of the transparent electrodes 2241 correspond to the positions of the transparent electrodes 2221 one by one, so that the structure is relatively simplified, the manufacturing is convenient, the cost is low, and when each pair of transparent electrodes 2241 and each pair of transparent electrodes 2221 pass through, the corresponding transparent grid 221 can be opened, and the control is convenient.
In one embodiment, referring to fig. 7, the grating module 22 includes a plurality of electrochromic bars 225, and the color of each electrochromic bar 225 can be controlled to realize the light transmission or shielding of the corresponding electrochromic bar 225, i.e., each electrochromic bar 225 forms a light-transmitting grating 221. Electrochromic strips 225 may be strip-shaped structures fabricated using electrochromic materials.
In one embodiment, the grating module 22 further includes a transparent layer 226, each electrochromic strip 225 is adhered to the transparent layer 226, and each electrochromic strip 225 is supported by the transparent layer 226, so as to facilitate installation.
In some embodiments, the grating module 22 may be a one-piece electrochromic film, and the light transmittance of different regions of the electrochromic film is controlled to form a plurality of sets of light-transmissive grating strips 221.
In one embodiment, referring to fig. 10, the screen module 21 includes a display light source 212, a curved reflector 214 and a beam splitter 213; the beam splitter 213 reflects the light emitted from the display light source 212 to the curved reflector 214, and allows the light reflected by the curved reflector 214 to pass through for projection to the human eye 90; the image light generated by the display light source 212 is reflected to the curved reflector 214 by the beam splitter 213, then reflected by the curved reflector 214, and passes through the beam splitter 213 to the human eye 90, so that the display area 210 is formed on the corresponding curved reflector 214; the grating module 22 is disposed on the light emitting path of the display light source 212 to perform region division on the display region 210. In addition, this structure may facilitate layout of the display light sources 212.
In one embodiment, referring to fig. 10, the screen module 21 further includes a lens assembly 215, the lens assembly 215 is disposed between the display light source 212 and the beam splitter 213; the lens assembly 215 is arranged to facilitate focusing so that the display light source 212 projects a clear projection onto the curved reflector 214; in addition, the lens assembly 215 may enlarge the image displayed by the display light source 212 and project the enlarged image onto the curved reflector 214, so as to provide a user with a larger viewing field.
In one embodiment, referring to fig. 10, the grating module 22 is disposed between the curved mirror 214 and the beam splitter 213, and the light projected from the beam splitter 213 to the curved mirror 214 is directly blocked by the grating module 22.
In one embodiment, the grating module 22 may be attached to the curved mirror 214 to facilitate mounting of the curved mirror 214. In one embodiment, the grating module 22 may also be attached to a surface of the beam splitter 213 near the curved mirror 214.
In one embodiment, referring to fig. 11, the grating module 22 is disposed on a side of the beam splitter 213 away from the curved reflector 214, and the structure blocks the light before reaching the human eye 90, and also controls the area of the image entering the human eye 90 each time. In still other embodiments, referring to fig. 12, the grating module 22 may be disposed between the display light source 212 and the beam splitter 213, and the displayed image may be projected to the human eye 90 in different regions.
In one embodiment, the grating module 22 may be attached to a surface of the beam splitter 213 facing away from the curved mirror 214, so as to support the grating module 22 conveniently.
In an embodiment, referring to fig. 13, an optical film 2131 may be disposed on the beam splitter 213 to enhance light transmittance, so that light reflected by the curved reflector 214 can be more transmitted out of the beam splitter 213, thereby improving the brightness of the video viewed by the user, improving the user experience, and reducing power consumption under the condition of controlling the brightness.
In one embodiment, optical film 2131 can be an antireflective film to enhance light transmission. In other embodiments, the optical film 2131 may be a polarizing film, and the polarizing film may reflect more light rays from the display light source 212 onto the beam splitter 213 to the curved reflector 214 and transmit more light rays reflected by the curved reflector 214, thereby increasing the transmittance of the light rays.
In one embodiment, referring to fig. 13, the curved reflector 214 is provided with a functional film 2141, and the functional film 2141 is used for enhancing the light reflection rate, so that the curved reflector 214 better reflects the display light to the beam splitter 213. The functional film 2141 may be a film such as a reflective film that can increase the reflectivity of the curved reflector 214.
The wearable device 100 of the embodiment of the present application may be an AR glasses, an AR helmet, an immersive game cabin, or the like. In addition, the wearable device 100 of the embodiment of the application can be used for displaying video files and pictures for users to watch; program screens and interfaces may also be displayed for user operation.
Referring to fig. 14, an embodiment of the present application further discloses an image projection method, and referring to fig. 2 and fig. 3, the image projection method includes the following steps:
s1: a plurality of light-transmitting bars 221 for blocking light when closed and transmitting light when opened;
s2: the plurality of light-transmitting grid bars 221 correspond to the display area 210, and the plurality of light-transmitting grid bars 221 are divided into a plurality of groups which are arranged in a periodic staggered manner;
s3: the image is divided into a plurality of sub-images according to the position area processing of the display area 210 corresponding to the plurality of groups of light-transmitting grid bars 221;
s4: the multiple sets of light-transmitting grids 221 are controlled to be sequentially opened, and corresponding partial position areas on the display area 210 are controlled to display corresponding sub-images when the light-transmitting grids 221 of each set are opened.
By using the light-transmitting grid bars 221 and corresponding the light-transmitting grid bars 221 to the display area 210, whether the light emitted from the designated position area of the display area 210 can penetrate through the light-transmitting grid bars 221 can be controlled, and whether the partial image displayed in the designated position area of the display area 210 can be projected to human eyes can be controlled.
Dividing the image processing into a plurality of sub-images, wherein each sub-image is a part of the whole image; when each group of the light-transmitting grid bars 221 is opened, a part of the position area corresponding to the group of the light-transmitting grid bars 221 on the display area 210 is displayed to work so as to display the corresponding sub-image, and when the plurality of groups of the light-transmitting grid bars 221 are opened in sequence, the corresponding position area on the display area 210 works, and due to the visual effect of human eyes, the whole display area 210 can be seen, so that the complete image displayed by the display area 210 can be seen.
The image projection method of the embodiment of the application comprises the steps that multiple groups of light-transmitting grid bars 221 correspond to a display area 210, the image is divided into multiple sub-images, each sub-image corresponds to one group of light-transmitting grid bars 221 and a part of position areas on the display area 210, the multiple groups of light-transmitting grid bars 221 are sequentially started, the whole display area 210 can be seen due to the persistence of vision of human eyes, the complete image displayed by the display area 210 can be further seen, the display area 210 only needs to display one sub-image of the complete image every time, the use of bandwidth is reduced, a corresponding processor serving as control only needs to process corresponding partial data every time, the data processing amount is small, and power consumption and heating can be further reduced.
The image projection method of the embodiment of the present application may be implemented by using the wearable device described in any of the above embodiments. Accordingly, the additional functions of the wearable device described in any of the above embodiments may also be an extension of the image projection method of the embodiments of the present application. That is to say, in some embodiments, the image projection method according to the embodiments of the present application may include the wearable device according to any of the above embodiments, so as to implement the image projection method according to the embodiments of the present application.
The above description is only exemplary of the present application and should not be taken as limiting the present application, as any modification, equivalent replacement, or improvement made within the spirit and principle of the present application should be included in the protection scope of the present application.
Claims (19)
1. Wearable equipment, including support, display module and treater, display module install in on the support, its characterized in that, display module includes:
the screen module is provided with a display area; and the number of the first and second groups,
the grating module comprises a plurality of light-transmitting grating bars for shielding light rays when the grating module is closed and transmitting light rays when the grating module is opened, the plurality of light-transmitting grating bars are divided into a plurality of groups, each group of light-transmitting grating bars is used for transmitting light rays emitted by a part of position areas on the display area when the grating module is opened, and the plurality of groups of light-transmitting grating bars are arranged in a periodic staggered manner;
the processor is used for controlling the multiple groups of the light-transmitting grid bars to be sequentially opened and controlling the corresponding partial position areas on the display area to display when the light-transmitting grid bars of each group are opened.
2. The wearable device of claim 1, wherein: the grating module comprises a light-transmitting substrate, a box dam arranged on the light-transmitting substrate, liquid crystal filled in the box dam and a light-transmitting cover plate covering the box dam; the transparent substrate is provided with a transparent electrode, and the transparent cover plate is provided with a transparent electrode which is used for being matched with the transparent electrode to control the liquid crystal to rotate so as to form a plurality of groups of transparent grid bars.
3. The wearable device of claim 2, wherein: the transparent electrode covers the light-transmitting cover plate, and the light-transmitting electrode is arranged in a long strip shape; or the transparent electrode covers the transparent substrate, and the transparent electrode is arranged in a long strip shape.
4. The wearable device of claim 2, wherein: the transparent electrode and the light-transmitting electrode are both in a strip shape, and the transparent electrode is perpendicular to the light-transmitting electrode.
5. The wearable device of claim 2, wherein: the transparent electrode and the light-transmitting electrode are both in a strip shape, the transparent electrode is parallel to the light-transmitting electrode, and the positions of the transparent electrode and the light-transmitting electrode correspond to each other one by one.
6. The wearable device of claim 1, wherein: the grating module comprises a plurality of electrochromic strips, and each electrochromic strip forms one light-transmitting grating strip.
7. The wearable device of claim 6, wherein: the grating module further comprises a light transmitting layer, and each electrochromic strip is adhered to the light transmitting layer.
8. The wearable device of any of claims 1-7, wherein: the light-transmitting grid bars are divided into two groups.
9. The wearable device of any of claims 1-7, wherein: each light-transmitting grid bar corresponds to M rows of pixels on the display area, and M is a positive integer.
10. The wearable device of any of claims 1-7, wherein: the display area is provided with K rows of pixels, the light-transmitting grid bars are N groups, each group of light-transmitting grid bars comprises P light-transmitting grid bars, and each light-transmitting grid bar corresponds to M rows of pixels on the display area; k ═ P × M × N, where: K. p, M, N are positive integers, and N is more than or equal to 2.
11. The wearable device of any of claims 1-7, wherein: the number of the display modules is two, and the two display modules correspond to the left eye and the right eye respectively.
12. The wearable device of any of claims 1-7, wherein: the screen module is a display screen; the grating module is arranged on the front side of the display screen at intervals, or the grating module is attached to the display screen.
13. The wearable device of any of claims 1-7, wherein: the screen module comprises a display light source, a curved reflector and a spectroscope; the spectroscope reflects the light rays emitted by the display light source to the curved surface reflector and allows the light rays reflected by the curved surface reflector to pass out; the grating module is arranged on a light emitting path of the display light source.
14. The wearable device of claim 13, wherein: the grating module is arranged between the curved surface reflector and the spectroscope, or the grating module is arranged on one side of the spectroscope deviating from the curved surface reflector.
15. The wearable device of claim 13, wherein: the screen module further comprises a lens assembly arranged between the display light source and the spectroscope.
16. The wearable device of claim 13, wherein: and an optical film for enhancing the light transmittance is arranged on the spectroscope.
17. The wearable device of claim 16, wherein: the optical film includes a polarizing film and/or an antireflection film.
18. The wearable device of claim 13, wherein: and the curved reflector is provided with a functional film for enhancing the light reflection rate.
19. An image projection method, comprising the steps of:
a plurality of light-transmitting grid bars are arranged for shielding light when the grid bars are closed and transmitting light when the grid bars are opened;
the light-transmitting grid bars correspond to a display area, and the light-transmitting grid bars are divided into a plurality of groups which are arranged in a periodic staggered mode;
processing and dividing an image into a plurality of sub-images according to the position areas of the display areas corresponding to the plurality of groups of the light-transmitting grid bars;
controlling the multiple groups of light-transmitting grid bars to be opened in sequence, and controlling corresponding partial position areas on the display area to display corresponding sub-images when each group of light-transmitting grid bars are opened;
and controlling the multiple groups of the light-transmitting grid bars to be opened in sequence, and controlling the corresponding partial position areas on the display area to display when each group of the light-transmitting grid bars are opened.
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Application publication date: 20201120 |